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What would cause a thumping noise when increasing the pressure on the brakes but not pumping them?


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Wiki User
2004-11-01 09:37:06
2004-11-01 09:37:06

Take it to the garage and have them check for a cracked rotor or a loose caliper.

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The pumping and releasing of brakes by the unit is brake pressure modulation

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Be pointless. The point of anti-lock brakes it to effectively "pump" the brakes for you.

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Stop the car in a pulsating manner.

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Pumping brakes can help restore pressure to the brake calipers temporarily. But this method wont work if the vehicle is equipped with ABS, or anti-lock brakes. Usually, down shifting will help slow the vehicle down, but not stop completely.


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